Nonspirally corrugated tube for surgical transplants - produced by hot moulding thermoplastic or fabric tube to shape

Abstract

Abstract A round thermoplastic tube, partic. for use as a surgical transplant, is corrugated along its length, it is produced e.g. as follows: by heating to softening temp. applying a circular former under press. cooling, placing on a smooth cylindrical shaft, applying press, from >=1 end to shorten it, fastening it to the shaft, reheating and recooling to make the corrugation round and uniform. The corrugations, which are necessary for stiffness and flexibility and for a good key to blood vessels, are not spiral so that the tube does not tend to rotate under tension, the tube is uniform and cheap to produce.

Inventors

No inventors recorded.

Bibliographic Details